Check out this iron sight from Clear Image Solutions thta cna be used with the reflex sight or your rear iron sight and does not require batteries and you can swap the lenses from Red Dot to Green Dot.. "The Revolution Model 1776 is a patented front sight and is like no other AR-15 / M-16 iron sight on the market today. The M1776 is tough, reliable and made in the USA. The M1776 is the fastest and most effective iron sight on the market. It is designed for use on any 'same plane' picatinny rail system or railed gas block and can be used as your primary or secondary aiming platform. Want to save battery power, co-witness with your reflex sight, turn power off and run. The M1776 also has 40 MOA of elevation adjustment.
THE M1776 OFFERS THE SHOOTER:
- Instinctive / automatic sight alignment
- Immediate target acquisition
- Unobstructed view of the intended target
- Unparalleled sight picture
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OTHER FEATURES OF THE M1776:
- Machined from carbon steel, durable and passes the four foot drop test standard
- Offering up to 40 MOA of elevation adjustment
- Interchangeable lens system that features a light gathering fiber optic rod embedded in an abrasion resistant acrylic lens. Negligible zero shift when changing lenses.
- The fiber optic rod gathers all ambient light and provides a clear aiming reference (“dot”) for the shooter engaged in any shooting discipline including military and law enforcement
- No tools necessary / quick release mounting system
- No batteries or external power source necessary
- NOTE – the M1776 is designed for use on single (same) plane mounting systems or receiver height railed gas blocks.
In short, the M1776 is quick, accurate, durable and simply the best iron sight for the AR platform on the market today."
